Human body

Human body contains different organs

such as heart, lungs, liver, stomach, intestine,

eyes, ear, muscles, bones etc. Each of them

also perform specific function. But they work in

a coordinated or integrated manner for the

benefit of the individual. For example, when

we write, there is coordination between the eyes

and the hand. When somebody is dancing or

playing, there is coordination among the

functioning of hands, legs, head, eyes & ears

etc. As soon as we eat, the digestive glands

start secreting enzymes. When somebody runs,

the rate of respiration & circulation increase to

provide more energy. So integration of activities

of different parts of the body or organs is

essential for the organism. Such integration is

achieved by two systems, nervous and

endocrine systemns

Nervous system consists of a group of

organs which control and coordinate the

activities of various parts of the body in

response to external and internal changes or

stimuli. The basic components of nervous

system are the neurons. Studies on different

aspects of nervous system is called neurology.